from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A disposition to believe too readily.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A willingness to believe in someone or something in the absence of reasonable proof; credulousness.

from the GNU version of the Collaborative International Dictionary of English

  • n. Readiness of belief; a disposition to believe on slight evidence.

from The Century Dictionary and Cyclopedia

  • n. A weak or ignorant disregard of the nature or strength of the evidence upon which a belief is founded; in general, a disposition, arising from weakness or ignorance, to believe too readily, especially impossible or absurd things.
  • n. Synonyms Fanaticism, Bigotry, etc.
  • n. See superstition.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. tendency to believe readily


Middle English credulite, from Old French, from Latin crēdulitās, from crēdulus, credulous; see credulous.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From French credulité, or directly from Latin crēdulitās. (Wiktionary)


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  • Some scientist's credulity tend to make them seek simple answers to complex questions.

    June 4, 2013

  • Only allow me to give you a word of advice: keep your credulity out of your pockets! Don't pay for the picture till it's delivered.

    Henry James, "The Madonna of the Future"

    July 28, 2011